China vs Japan.
China vs Japan.
The Russian Tsar (Nicholas) vs the Japanese Emperor (Meiji).
That would be communists vs nationalists
The Western Barraks in Stalingrad Germany (Allies vs Germany), The Japanese Island (U.S. vs Japan) archipelago, and Western Africa (France & Britain vs Italy).
bloods vs crips ms-13 vs latin kings hells angels vs. pagans judaism vs. world catholism vs. protestan blacks vs whites chinese vs. japanese mario vs. sonic sparta vs. persia hitler vs. elie wiesel justice league vs. legion of doom x-men vs. avengers marvel vs. capcom roe vs. wade axis vs. allies terrorists vs. counter terrorists red vs. blue purple parrots vs. green monkeys chum bucket vs. krusty crab rocky vs. apollo hillary vs. obama bloods vs crips ms-13 vs latin kings hells angels vs. pagans judaism vs. world catholism vs. protestan blacks vs whites chinese vs. japanese mario vs. sonic sparta vs. persia hitler vs. elie wiesel justice league vs. legion of doom x-men vs. avengers marvel vs. capcom roe vs. wade axis vs. allies terrorists vs. counter terrorists red vs. blue purple parrots vs. green monkeys chum bucket vs. krusty crab rocky vs. apollo hillary vs. obama bloods vs crips ms-13 vs latin kings hells angels vs. pagans judaism vs. world catholism vs. protestan blacks vs whites chinese vs. japanese mario vs. sonic sparta vs. persia hitler vs. elie wiesel justice league vs. legion of doom x-men vs. avengers marvel vs. capcom roe vs. wade axis vs. allies terrorists vs. counter terrorists red vs. blue purple parrots vs. green monkeys chum bucket vs. krusty crab rocky vs. apollo hillary vs. obama
20 to 3 Chinese Taipei won.
The Japanese vs the Americans
Best is a bit of a misnomer. The most stark example of Total War in WW2 was the Eastern Front: Germany Vs the Soviet Union. Then the use of Atomic Weapons Vs the Japanese Cities. Then the retaking of the Pacific Islands by the US Marines from the Japanese.
Japan had more than one civil war. One was the Onin War from 1467-1477. After that began the Sengoku period which was basically all of Japan at war with each other. It ended with Japan's unification in 1603. Then there was a more recent civil war which was the samurai vs. the Japanese Army, it started 1863 and ended 1868. The war ended with the samurai class being abolished.
The United States probably would have used much more than two atom bombs to win the war. Michael Montagne
Chinese vs. United States